Unit: Waves
Year: 1988 Question#: 37
Question: When the stretched string of the apparatus represented below is made to vibrate, point P does not move. Point P is most probably at the location of
(1 ) A node
(2 ) An antinode
(3 ) Maximum amplitude
(4 ) Maximum pulse
What is this question really asking?
Explanation by: Yui H.
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Answer 1
a node
correct
This answer is correct because a node is the place in the wave which does not move.
Circles on this diagram is where nodes are located.
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Answer 2
an antinode
incorrect
This answer is incorrect because an antinode is place in the wave where it moves.
Circles on this diagram represent antinodes, part of wave where it moves.
return to top Answer 3
maximum amplitude
incorrect
This answer is incorrect because amplitude is the height of a wave and if the point P is at the location of maximum amplitude, there wouldn't be any vibration on the string.
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maximum pulse
incorrect
This answer is incorrect because pulse is a disturbance that moves from one position to another. Pulse is the point of wave that is moving.
return to top What's this question really asking?
What is the location of point P called if P does not move up anf down when the string is vibrated? return to top
